Subject: Re: RAID tuning
To: Greg Oster <email@example.com>
From: Manuel Bouyer <firstname.lastname@example.org>
Date: 12/20/2002 00:06:59
On Thu, Dec 19, 2002 at 04:39:16PM -0600, Greg Oster wrote:
> Manuel Bouyer writes:
> > On Thu, Dec 19, 2002 at 04:25:34PM -0600, Greg Oster wrote:
> > > Manuel Bouyer writes:
> > > > On Thu, Dec 19, 2002 at 03:20:02PM -0600, Greg Oster wrote:
> > > > > [...]
> > > > > Yes. Note that the queue type (and size) is not stored in the componen
> > t
> > > > > labels, so if you're using autoconfig, then it will automatically use f
> > ifo,
> > > >
> > > > > and you won't be able to change it. (yes, that's a bug, and yes, it's o
> > n my
> > > >
> > > > > TODO list, and no, there hasn't been a lot (read: any) demand to fix th
> > at
> > > > > bug yet :-} )
> > > >
> > > > So
> > > > 'fifo 100'
> > > > is lost at autoconfig ?
> > >
> > > Not quite... only the "fifo" part is lost. The 100 part (or whatever you h
> > ave
> > > it set to) is still used. (Do a 'raidctl -s raid0' and look for "Queue siz
> > e").
> > It says:
> > Queue size: 0 blocksize: 512, numBlocks: 17916160
> > I set it to 3584 (14 * 256).
> Hmm... It shows up as 100 on all of my boxes (cause that's what I leave mine
> set to...).. Hmmm... when did you build that RAID set?
It's mostly a 1.6 box (with some patches, but nothing that should affect
raidframe). I built this raid about 2 weeks ago.
It's a raid1 with 14 disks, but I see the same on 2-disks raid-1 boxes where
I set it to 512.
Manuel Bouyer <email@example.com>
NetBSD: 23 ans d'experience feront toujours la difference